Safety heat guard extension light shield



Dec. 6, 1955 'r. M. WATERMAN 2,726,323

SAFETY HEAT GUARD EXTENSION LIGHT SHIELD Filed June 2, 1953 I N VEN TOR.

36 Thomas Ml/Vaierman ATTD RN EYS SAFETY HEAT GUARD EXTENSION LIGHTSHIELD Thomas Martin Waterman, Springfield, Mass. Y Application June 2,1953, Serial'No. 359,049

2 Claims. (Cl. 246- 54) This invention relates to guardsor shields usedon extension or trouble lights of the typeprovided on the ends ofextension cords and particularly of the type having hooks whereby thelight may be suspended in convenient positions, and in particular anextension light having a conventional wire cage or guard provided on oneside of the light bulb with a double wall shield having a perforatedouter shield spaced from an inner shield on the opposite side and withthe shields and cage clamped on the base of a light socket whereby thelight may be used without danger of the operator being burned by thelight.

The purpose of this invention is to provide a protective shield toprevent annoying burns to the person using, or working with, the troubleor extension light, such as in the case of body contact of the face,hands and arms, to the conventional hot light shield or reflector whenaccidentally touched.

With the conventional light provided at the ends of extension cords andparticularly where the light bulbs are provided with protecting wirecages with hooks on the ends the hands and clothing of an operator areoften burned by heat from the lights. With this thought in mind thisinvention contemplates a protecting double wall shield positioned aroundone side of a trouble light whereby with the light rays projectingthrough a wire cage on one side of the trouble light the operator isprotected from the heat of the light.

The object of this invention is, therefore, to provide means forincorporating a protecting shield in the conventional Wire guard or cageof a trouble or extension light.

Another object of the invention is to provide an improved protectingguard or cage for an extension or trouble light in which the device isadapted to be clamped on a conventional light socket without changingparts of the socket.

A further object of the invention is to provide a trouble or extensionlight guard having a heat protecting shield incorporated therein inwhich the guard is of a simple and economical construction.

With these and other objects and advantages in view the inventionembodies a guard for an extension or trouble light having asubstantially semi-circular Wire section and a complementary sectionformed with spaced shields and with the outer shield being perforated.

Other features and advantages of the invention will appear from thefollowing description taken in connection with the drawing, wherein:

Figure l is a side elevational view showing the light guard with thewire section of the cage positioned on one side of the light bulb andwith the perforated shield on the opposite side.

Figure 2 is a vertical section through the improved light guard with theparts as shown in Fig. l and with the light bulb and mounting socketshown in elevation.

Figure 3 is a sectional plan through the light guard taken on line 3-3of Fig. 1.

Figure 4 is a detail illustrating the mounting of a hook tates atent teeat the extended end of the guard in the wire guard and shield, the partsbeing shown on an enlarged scale.

Figure 5 is a sectional plan taken on line 5-5 of Fig. 4 'alsoy'showingthe, mounting of the hook stern in the upper end'of the guard. v

Figure 6 is a sectional'view through the shield portion of the guardwith thewire guard and hook mounting element omitted illustrating amodification whereby the shield may be used independent of the wiresection of the guard; v v

Figure 7 is a detail showing a section taken on line 7-7 of Fig. 6illustrating a snap connectionfor temporarily mounting the outer shieldon the inner shield of the guard.

Figure 8 is a detail taken-on line..j88 of Fig. 6 illustrat ngf thespring fingers which are positioned .to snap around the light socket forretaining the guard in position on the socket.

Referring now to the drawing wherein like reference characters denotecorresponding parts the improved light guard of this invention includesa wire cage or guard 10, a substantially semi-circular inner shield 11positioned on the side of the light bulb opposite to that on which thewire section 10 is positioned, a perforated shield 12 spaced from theshield 11, a hook 13 mounted in the extended end of the guard and aclamp including semi-cir- '15 of the clamp and the upper ends of whichare merged into a hub 20 that is provided with an opening 21 throughwhich a lower section 22 of a stem 23 of the hook 13 extends and thestem is provided with lugs 24 that rest on the hub. The cage section litis also provided with spaced laterally extended wires 25.

The lower end of the stem 23 of the hook is provided with a collar 26against which a spring Washer 27 is positioned and, as illustrated inFig. 4 the spring washer urges an extension 23 of the outer shield i2against the under surface of the hub 20 of the wire cage section, andthis spring washer makes it possible to rotate or turn the device on thestern of the hook to adjust the position of the guard.

The outer shield 12 is spaced from the inner shield 11 with tubularspacing elements 2? through which rivets or bolts 30 extend, as shown inFig. 2. The lower edges of the shields are secured to the section 14' ofthe clamp by suitable means, such as by welding. The outer shield 12 isprovided with perforations, as indicated by the numeral 31.

With the parts formed in this manner the combination wire guard andshield may readily be clamped over a socket 32 of a light bulb mountingand with the parts in position rays of the light bulb, which isindicated by the numeral 33 may pass through the Wire cage with theinner shield 11 functioning as a reflector, and with the air space 34between the inner shield 11 and outer shield 12, the heat from the lightbulb is arrested with the outer shield 12 remaining comparatively cool.

In the design illustrated in Figs. 6, 7 and 8 an inner conventionalshield 35 is mounted on a light socket 43 by means of clamps 42, thatare similar in structure to clamps l4 and 15. The clamps 42 are providedwith flanges 46 and 47 to receive bolts 44 and 45 whereby the clamps 42are retained on the light socket 415 in fixed relation thereto, as shownin Fig. 6.

An outer shield 38, similar to the shield 12 is provided at its lowerend with spring fingers 36 and 37 which engage the light socket 43, asshown in Fig. 8. The outer shield 38 is also provided with springfingers 39 having clips 40 on the ends thereof that snap over the edgeof the innershield 35, as shown in Fig. 7. The spring fingers 36, 37 and39 retain the outer shield 38 in circumjacent spaced relation to theinner shield 35 and spacingelements 41 may also be provided between theinner and outer shields adjacent the lower endsthereof, as shown in Fig.6.

The shield shown in Figs. 6, 7 and 8 is substantially the same as thatshown in Figs. 1 and 2 except that the hook and wire guard may beomitted as in numerous instances the wire guard and hook may not berequired;

It will be understood that other modifications, within the scope of theappended claims, may be made in the design and arrangement of the partswithout departing from the spirit of the invention.

What is claimed is:

l. A guard for extension lights comprising an inner shield substantiallysemi-circular in cross section, an outer perforated, shield alsosubstantially semi-circular in cross section, spring fingers on. saidouter shield having clips on the outer ends thereof engaging the edge ofthe inner shield for mounting the outer shield on the inner shield withthe outer shield spaced from the inner shield, and clamping means on theinner shield for mounting the inner shield on the base of an electriclight fixture.

2. A guard as in claim 1, wherein spacing elements are positionedbetween the inner and outer shields to retain the shields in spacedrelation to each other.

References Cited in the file of this patent UNITED STATES PATENTS1,435,133 Amos Nov. 7, 1922 1,774,515 Johnson Sept. 2, 1930 1,899,272Hertz Feb. 28, 1933 1,955,284 Goosman Apr. 17, 1934 2,329,162 PerkinsSept. 7, 1943 2,347,420 Langille Apr. 25, 1944 2,534,037 Langille Dec.12, 1950 2,626,347 Baenziger Jan. 20, 1953 2,652,484 Graves Sept. 7,1953

